EP 3681029 A1 20200715 - POWER CONVERSION DEVICE
Title (en)
POWER CONVERSION DEVICE
Title (de)
STROMUMWANDLUNGSVORRICHTUNG
Title (fr)
DISPOSITIF DE CONVERSION D'ÉNERGIE
Publication
Application
Priority
JP 2017032514 W 20170908
Abstract (en)
A power conversion apparatus comprises, a converter 31 that receives a three-phase AC power supply 1 and outputs a DC voltage, an inverter 32 that is connected to the output of the converter 31 and drives the AC motor 5 via the output switch 4, a power switch 6 for directly driving an AC motor 5 from the AC power supply 1,a current detector 12 for detecting the output current of the inverter 32, a voltage detector 14 and a current detector 13 for detecting the voltage and current of the power supply system on the input side of the converter 3, respectively, and a control unit 7 for controlling the three-phase output voltage of the inverter 32 based on the voltage command of three phases. The control unit 7 includes a vector control unit that performs vector control of the AC motor 5 and a synchronous incorporation controller 83. The synchronous incorporation controller 83 switches to operate the inverter 32 as a reactive power controller for the power supply system after closing the power switch 6 to synchronize the AC motor 5 with the AC power supply 1.
IPC 8 full level
H02M 7/48 (2007.01)
CPC (source: EP US)
H02M 5/4585 (2013.01 - US); H02M 7/48 (2013.01 - EP); H02M 7/5395 (2013.01 - US); H02P 21/0003 (2013.01 - EP); H02P 21/06 (2013.01 - EP); H02P 21/14 (2013.01 - EP US); H02P 21/22 (2016.02 - EP US); H02P 25/024 (2016.02 - EP); H02P 27/04 (2013.01 - EP); H02P 27/08 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3681029 A1 20200715; EP 3681029 A4 20210317; EP 3681029 B1 20221019; CN 111052583 A 20200421; CN 111052583 B 20230502; JP 6785383 B2 20201118; JP WO2019049321 A1 20200618; US 11081999 B2 20210803; US 2020204103 A1 20200625; WO 2019049321 A1 20190314
DOCDB simple family (application)
EP 17924336 A 20170908; CN 201780094645 A 20170908; JP 2017032514 W 20170908; JP 2019540246 A 20170908; US 202016807217 A 20200303